Title
Callus induction, clonal propagation and in vitro germplasm conservation of 'hualtaco' Loxopterygium huasango Spruce ex Engl. (Anacardiaceae)
Date Issued
01 December 2021
Access level
open access
Resource Type
journal article
Author(s)
Publisher(s)
Universidad Nacional de Trujillo
Abstract
Loxopterygium huasango Spruce ex Engl., of the Anacardiaceae family, classified critically endangered, is a forest tree with considerable value in the Seasonally Dry Tropical Forest (SDTF) in the northwest of Peru and south of Ecuador. The aim of the study was callus induction, propagation and germplasm conservation using in vitro tissue culture techniques. In vitro seed germination (90%) was obtained on Murashige and Skoog (MS) medium supplemented with 5.0 mg/L-1 GA3. The cotyledonal nodes of seedlings were used as explants to initiate the growth of the apical shoots, in culture medium with the IAA-GA3 interactions, without observing growth of the axillary buds. The highest rate of friable callus induction (100%) was recorded on MS medium containing 0.1 to 5.0 mg/L-1 2,4-D in cotyledons and hypocotyls explants after 30 to 45 days of culture. The profuse roots formation was the only morphogenic response (10.8 to 13.8%) on MS medium with 0.5 mg/L-1 IAA, 0.5 mg/L-1 IAA 2.0 mg/L-1 BAP, KIN or 2iP or 2.0 mg/L-1 BAP, KIN or 2iP. The germplasm conservation of apical buds and nodal segments was achieved with 2.0 mg/L-1 AgNO3. This method could be used to conserve elite genotypes, rapid production of roots and establishment of cellular suspension for secondary compounds production.
Start page
545
End page
556
Volume
12
Issue
4
Language
English
OCDE Knowledge area
Biotecnología agrícola, Biotecnología alimentaria
Subjects
Scopus EID
2-s2.0-85122562975
Source
Scientia Agropecuaria
ISSN of the container
20779917
Sources of information:
Directorio de Producción Científica
Scopus